A terrifyingly breathable half-zip short-sleeve shirt. It's thin and breathable with a coarse texture that keeps it away from the skin, so you won't feel uncomfortable even in the height of summer. When you feel the wind on a ridgeline, it feels like all the heat is escaping. Discontinued item. It's labeled JAPAN M / US S, but it fits me perfectly at 160cm and 47kg, so I'm listing it as a size S. The color is a greenish-gray with the old logo. - Color: Gray - Design: Half-zip - Material: Breathable fabric - Features: Seam design on the back Thank you for looking.